https://en.wikipedia.org/wiki/1989_Tiananmen_Square_protests...
but yeah, compared to what Israelis do in Gaza or Iran, even whole Beijing numbers are negligible considering China population
https://en.wikipedia.org/wiki/Chengdu_protests_of_1989
There was plenty of rounding up student leaders and executions afterwards, but I don't think even the wildest anti-communists would claim a death toll in the thousands for this.
In the end they decided it was worth the risk and I guess they were right, because China survived that period without any rotation of elites and became more prosperous and powerful as a result, avoiding all the chaos of the former Soviet countries
To this day, the official version is, nothing happened there and then. If you talk about it online inside china, or using chinese services outside of it, it will automatically be blocked.
So yes, people did get out, but till this day they will have to face persecution or other disadvantages and some want to to visit family again or not have them face consequences.
In other words I don't know about any numbers, but how can you claim to know, when the chinese government did all it could to prevent acurate information?
Also, china has many cities. If in the biggest incident there were up to 2000 dead, then it all could easily add up to ten thousands. (But like I said, I don't claim to know)